Machine for wrapping tubes.



J. G. VIOOIVIY.

MACHINE FOR WRAPPING TUBES. APPLICATION FILED JUNE I. 1917.

hmmm Aun. 6, 1918,

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'PATENT FME.

JOSEPH G. MOOMY, 0F ERIE, lIPENNSYLVANLA..

MACHINE FCR WRAFPING TUBES.

T o all whom it may concern:

Be it known that I, JOSEPH Gr. MoouY, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Machines for lWrapping T ubes, of which the following is a specification. l

This invention relates to machines for wrapping tubes and consists in certain improvements in4 the construction thereof as will be hereinafter fully described .and pointed out in the claims.

A machine has been provided for wrapping tubes. In the present invention the wrapping of the raw tube accomplishes the unwinding of the wrapping material from a vulcanized tube. that in making tubes, such as are used in automobiletires, the raw tube is formed ona pole and wrapped with a strip of canvas,-

the strip of canvas being left in position on I the' raw tube during vulcanization. As heretofoie practised the wrapping has been unwound on to some intermediate means as a spool or pole and then is rewo'und on to a raw tube, thus subjecting the fabric to additional wear and strain and requiring a separate operation.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a plan view of the machine.

Fig. 2 a side elevation of the machine, a part being in section to better show construction.

Fig. 3 a section on the line 3 3 in Fig. 1.

Fig. 4 a section on the line 4.-1 in Fig. 1.

1 marks the frame of the machine. A head-piece 2 is mounted on the frame. This has a spindle bearing 3 inwhich is arranged a spindle 4. The spindle 4 has a squared socket 4a in the end. A tail-piece 5 has the spindle bearing 6, the bearing being formed of a front and rear part with an open space between. A cone support 7 is carried by the shaft 8, the shaft 8 being journaled in the bearing G. The spindle 8 is provided with a collar 9 in the open space between the parts of the bearing and a spring 10 is mounted on the shaft 8' and rests against the` rear portion of the bearing and exerts pressure against the collar 9 to force the cone 7 against a pole 11. The pole 11 has a squared end 1'2 which is inserted inte the socket A so that it is driven with the Specification of Letters Patent.

It will be understood' `be actuated by the operator.

Patented Aug. 3, 1913.

Application filed June 1, 1917. Serial No. 172,322.

spindleui. In placing the pole in the inachine, the end is placed against the cone 7, the cone forced back against the pressure of the spring 10 and the squared end 12 slipped intothe socket PR The spindle 4 is driven from a pulley 13. This pulley has al friction face 11 which coperates with a friction member 15., The member 15 is connected rwith the spindle 4 by a spline and groove 'mechanism and is provided with a grooved hub 16. A bell crank lever 17 operates in the grooved hub 16. Thel lever is pivoted at 18 on the frame. A link 19 is also connected with the bell crank lever and eX- tends to an arm Q0 secured to a rock shaft Q1 extending across the machine near the flobr. A long` pedal 22 is secured to the rock shaft 21. A spring 21 on the end of the rock shaft 21 normally holds the clutch out of action. When the pedal 22 is depressed it throws the clutch members into contact and so drives the pole.l These parts are of common construction in wrapping machines.

A sliding head 23 is slidingly mounted in the guide 21. with., a Vdove-tail connection. A rack 25 is mounted on the head 23 and a pinion 26 operates in the rack. The pinion is fixed on a shaft 27 carried by the bearings 27a and a wheel 28 is fixed on the outer end of the shaft in convenient position to l By turning the wheel 28 the head Q3 may bemoved to the right or leftfor the purposes hereinafter described. A spindle 29 is journaled in the bearings 30 carried by the head 23. The spindle has a Socket 31 in its end adapted to receive the squared end 12a of the unwinding pole 11a. A friction pulley 32 is fixed on the endof the spindle and a brake band 33 is anchored on the frame at 33a and extends over this pulley. rThe end of the band is supplied with a weight 34C so that a certain amount of resistance to rotation is given to the spindle 29. This may be increased or diminished by the 'increasing or diminishing of the Weight 34.

A centering cone 35 is mounted on 'the spindle 36. The spindle 36 is liournaled in the bearings 37, thel bearings being formed with a front and rear part and an open space between. A collar 3S is fixed on the spindle -in the space between the parts of the bearthe collar. The pole 1la is centered by the cone 35, the cone being pressed back and the squared end may be 'put into the socket 31. rlhe bearings 3'? aire carried by the sliding tail-piece and this is mounted in the slide ll in the frame by a dove-tail connection. l rod 43 connects the head 23 and the head l0 so that the two are moved together when the head 23 is actuated through the action of the pinion 26 on the rack 25.

rllhe operation of the machine is as follows: Av pole on which a tube 44- o raw stock is arranged is placed is position between the cone 7 and spindle t and is driven by the spindle 4:. A pole llla with a tube d5 which has been vulcanized is placed between the cone 35 and the spindle 23, the squared end of the pole being placed in the socket 31. i'llie end of the wrapping 46 is pulled loose trom the vulcanized tube and started on the pole ll with the. raw tube. then thrown into engagement by depressing the pedal 22 and the pole carrying the raw tube is then rotated. 'llhis rotation winds the wrapping i6 on to the raw tube pulling from the vulcanized tube and the winding is repeated with the same overlap and the same spiral on the raw tube as the wrapping had on the vulcanized tube.

lin order to start the wrapping on the raw tube in proper position the vulcanized tube moved to a position opposite the pole carrying the tube of raw stock. This is accomplished by moving the head 23 to the right or lett as necessity may require.'

here the wrapping breaks it is also necessary to `form some overlap and thiscan be accomplished by moving the head 23 in a direction to give a slight overlap ot the wrapping at this point.

'lhe fabric is moistened to facilitate its removal, llhe wetting oll the fabric not only facilitates the separation from the vulcanized tube but also nts the fabric for wrapping on the raw tube so that this wetting accomplishes the double purpose of separation and preparation for winding.

Some tension may be desired from the pulley 32 but with the use oi this machine rllhe clutch is intenta there is a local tension which is continuous and very desirable in holding the wrapping in proper relation and tension. Quite a considerable pull is required to release the wrapping from the vulcanized stock and this pull gives a peculiar and desirable tension which is utilized in wrapping a raw tube.

As a result one step in the usual operation is entirely eliminated, that is to say, the unwinding ot the tube accomplishes the wrapping of the raw tube. The elimination of this step reduces the wear and tear on the wrapping and at the same time assures a uniform wrapping under proper tension.

What l claim is l. ln a tube wrapping machine, the coinbination of a pole winding spindle comprising a head and tail piece; means for driving. and controlling said spindle; a pole unwinding spindle opposite the winding spindle and comprising a head and tail piece, the head and tail piece of one of said spindles being connected; and means for adjusting said connected head and tail piece to adjust the spindles relatively to each other.

2. lin a tube wrapping machine, the combination of a pole winding spindle comprising a head and tail piece; means for driving and controlling said spindle; a pole unwinding spindle opposite the winding spindle and comprising connected head and tail pieces; and means for adjusting said connected head and tail pieces to adjust the spindles relatively to each other.

3. ln a tube wrapping machine, the combination of a winding spindle; means :tor driving and controlling said Winding spine die; a pole unwinding spindle opposite the winding spindle; head and tail pieces for said spindles, the head and(v tail pieces for the unwinding spindle being;` connected; sliding mountings for said connected head and tail-pieces; and means for actuating said mountings to adjust the unwinding spindle lengthwise relatively to the winding spindle,

lin testimony whereof l have hereunto set my hand.

JSEPH G. NMY. 

